Fixed bad cmake document interpretation
Fixed bad cmake document interpretation

Docs say:

"If nothing is found, the result will be <VAR>-NOTFOUND"

guijun/MCServer,SamOatesPlugins/cuberite,ionux/MCServer,linnemannr/MCServer,MuhammadWang/MCServer,zackp30/cuberite,birkett/cuberite,jammet/MCServer,guijun/MCServer,HelenaKitty/EbooMC,Tri125/MCServer,mjssw/cuberite,nicodinh/cuberite,Altenius/cuberite,nevercast/cuberite,marvinkopf/cuberite,marvinkopf/cuberite,MuhammadWang/MCServer,mc-server/MCServer,nounoursheureux/MCServer,nevercast/cuberite,Haxi52/cuberite,Schwertspize/cuberite,SamOatesPlugins/cuberite,Frownigami1/cuberite,nichwall/cuberite,electromatter/cuberite,ionux/MCServer,birkett/MCServer,ionux/MCServer,nounoursheureux/MCServer,mjssw/cuberite,thetaeo/cuberite,Haxi52/cuberite,Frownigami1/cuberite,QUSpilPrgm/cuberite,Tri125/MCServer,thetaeo/cuberite,thetaeo/cuberite,linnemannr/MCServer,tonibm19/cuberite,tonibm19/cuberite,Haxi52/cuberite,ionux/MCServer,birkett/cuberite,Schwertspize/cuberite,nounoursheureux/MCServer,birkett/cuberite,bendl/cuberite,mc-server/MCServer,linnemannr/MCServer,bendl/cuberite,Haxi52/cuberite,johnsoch/cuberite,HelenaKitty/EbooMC,QUSpilPrgm/cuberite,birkett/MCServer,jammet/MCServer,kevinr/cuberite,birkett/MCServer,ionux/MCServer,zackp30/cuberite,Schwertspize/cuberite,HelenaKitty/EbooMC,marvinkopf/cuberite,nichwall/cuberite,Howaner/MCServer,kevinr/cuberite,linnemannr/MCServer,johnsoch/cuberite,ionux/MCServer,bendl/cuberite,Haxi52/cuberite,nevercast/cuberite,Frownigami1/cuberite,tonibm19/cuberite,mmdk95/cuberite,Frownigami1/cuberite,Tri125/MCServer,mc-server/MCServer,nicodinh/cuberite,nounoursheureux/MCServer,electromatter/cuberite,zackp30/cuberite,mjssw/cuberite,mjssw/cuberite,zackp30/cuberite,nichwall/cuberite,birkett/cuberite,marvinkopf/cuberite,guijun/MCServer,kevinr/cuberite,Frownigami1/cuberite,Altenius/cuberite,jammet/MCServer,Howaner/MCServer,thetaeo/cuberite,kevinr/cuberite,SamOatesPlugins/cuberite,HelenaKitty/EbooMC,birkett/MCServer,bendl/cuberite,electromatter/cuberite,Fighter19/cuberite,Altenius/cuberite,linnemannr/MCServer,MuhammadWang/MCServer,mc-server/MCServer,zackp30/cuberite,birkett/MCServer,marvinkopf/cuberite,QUSpilPrgm/cuberite,birkett/cuberite,tonibm19/cuberite,SamOatesPlugins/cuberite,johnsoch/cuberite,nicodinh/cuberite,kevinr/cuberite,nevercast/cuberite,Altenius/cuberite,MuhammadWang/MCServer,Fighter19/cuberite,nevercast/cuberite,Fighter19/cuberite,guijun/MCServer,Tri125/MCServer,mmdk95/cuberite,zackp30/cuberite,jammet/MCServer,jammet/MCServer,birkett/MCServer,mmdk95/cuberite,linnemannr/MCServer,QUSpilPrgm/cuberite,birkett/cuberite,Howaner/MCServer,tonibm19/cuberite,electromatter/cuberite,Howaner/MCServer,nounoursheureux/MCServer,jammet/MCServer,Schwertspize/cuberite,Haxi52/cuberite,thetaeo/cuberite,Schwertspize/cuberite,bendl/cuberite,electromatter/cuberite,tonibm19/cuberite,nichwall/cuberite,MuhammadWang/MCServer,nicodinh/cuberite,nevercast/cuberite,Fighter19/cuberite,Altenius/cuberite,nicodinh/cuberite,nounoursheureux/MCServer,SamOatesPlugins/cuberite,mc-server/MCServer,mjssw/cuberite,thetaeo/cuberite,mmdk95/cuberite,electromatter/cuberite,marvinkopf/cuberite,guijun/MCServer,Tri125/MCServer,nicodinh/cuberite,QUSpilPrgm/cuberite,johnsoch/cuberite,HelenaKitty/EbooMC,Fighter19/cuberite,kevinr/cuberite,guijun/MCServer,mc-server/MCServer,mmdk95/cuberite,mjssw/cuberite,mmdk95/cuberite,Tri125/MCServer,johnsoch/cuberite,nichwall/cuberite,nichwall/cuberite,Fighter19/cuberite,Howaner/MCServer,Howaner/MCServer,QUSpilPrgm/cuberite